diff --git a/src/pulsecore/msgobject.c b/src/pulsecore/msgobject.c
index 075a28c59..b55ba8bf3 100644
--- a/src/pulsecore/msgobject.c
+++ b/src/pulsecore/msgobject.c
@@ -31,7 +31,7 @@ PA_DEFINE_PUBLIC_CLASS(pa_msgobject, pa_object);
 pa_msgobject *pa_msgobject_new_internal(size_t size, const char *type_id, pa_bool_t (*check_type)(const char *type_name)) {
     pa_msgobject *o;
 
-    pa_assert(size > sizeof(pa_msgobject));
+    pa_assert(size >= sizeof(pa_msgobject));
     pa_assert(type_id);
 
     if (!check_type)